Working version, env vars to file

Signed-off-by: Terekhin Alexandr <alex@bearns.me>

Dockerfile

@@ -6,11 +6,14 @@ RUN apk add --no-cache openssl-dev linux-headers zlib-dev gcc gperf cmake build-
 	&& cd build \
 	&&	cmake -DCMAKE_BUILD_TYPE=Release .. \
 	&& cmake --build . --target install \
-	&& apk del linux-headers gcc gperf cmake build-base git
+	&& apk del linux-headers gcc gperf cmake build-base git \
-RUN adduser --no-create-home --uid 2000 --disabled-password tg-bot
+	&& rm -r ./telegram-bot-api
+RUN adduser --no-create-home --uid 2000 --disabled-password tg-bot \
+	&& mkdir -p /opt/telegram-bot-api \
+	&& chown tg-bot:tg-bot /opt/telegram-bot-api
 
 ENV TELEGRAM_API_ID=""
 ENV TELEGRAM_API_HASH=""
 EXPOSE 8081/tcp
 USER tg-bot
-ENTRYPOINT ["/usr/local/bin/telegram-bot-api", "--local"]
+ENTRYPOINT ["/usr/local/bin/telegram-bot-api", "--local", "--dir=/opt/telegram-bot-api"]